I want to make a mobile app for Online Marketing Certified Professional OMCP® exam prep. The app contains multiple choice questions.If I name the app "OMCP® Online Marketing Certified Professional Exam prep" My Question is, How can I use the OMCP in the app name? Can I use OMCP® with this R sign or Should I use it without R sign? Do I need permission for using it with or without R sign ? I have tried searching about it but couldn't find much information. You help would behighly appreciated. Thanks.